This way of attack seems useless to me. This is also used on RH 8.0
systems, and for both 8.0 and 9 systems:

drwx------ 4 root root 4096 Jun 27 08:43 /var/run/sudo

Which means that if the packages are properly built (and will make sure
that this directory gets this permissions if it existed before the
rpm is installed), this attack will gain you nothing, since you need
to be root to exploit it. If you can get root access to make this
attack possible, then you might as well launch a shell instead.

Relevant Pages

[Full-Disclosure] Hacking competitions at RootWars.org... Each team will be given root access on a default install of Linux, ... access to my exploit FTP Server....target IP addresses, and a username/password for each target IP ... are not allowed to attack other teams in any way. ...(Full-Disclosure)

Re: Attacking Linux... I would go for a dictionary attack on ssh.... I can't remember if RH9 allowed root access by default. ...(comp.os.linux.misc)

Re: depth perception... very short necks can't, and I've never seen long-necked ones do it. ... Target or threat ranging by head motion is virtually useless beyond ... predator on the planet is *blind* during its attack....(rec.birds)

Re: Billions of dollars for nothing... fairwater@xxxxxxxxx made the phosphor on my monitor glow... but decoys and other counter-defensive systems are ... regardless of the scale of the attack, is useless....(sci.space.policy)